The natural science that involves the study of matter
and its motion through space and time, along with related concepts such
as energy and force.
Physics is one of the oldest academic disciplines, perhaps the oldest through its inclusion of astronomy. Over the last two millennia, physics was a part of natural philosophy along with chemistry, biology, and certain branches of mathematics, but during the scientific revolution in the 17th century, the natural sciences emerged as unique research programs in their own right.[b] Physics intersects with many interdisciplinary areas of research, such as biophysics and quantum chemistry, and the boundaries of physics are not rigidly defined. New ideas in physics often explain the fundamental mechanisms of other sciences while opening new avenues of research in areas such as mathematics and philosophy read more...
Some of the basic physics laws are:
- Ampere's Law: The line integral of magnetic flux over a closed surface is directly proportional to the algebraic sum of the current flowing through the surface. For more info.
- Bragg's Law: When
an X ray beam incident on a crystal lattice in which atoms are
periodically arranged, it get reflected. The intensity of the reflected
ray is given by n
λ = 2dsinθ . Whereλ is the wave length of the X ray, d is the inter planar spacing, \theta is the angle of incidence read more.
- Charles' Law: This law tells that the volume of an ideal gas is proportional to the temperature of the given gas at constant pressure read more.
- Coulomb's Law: This is the important law in electrostatics. Coulomb's law defined as the the attractive or repulsive force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them read more.
- Doppler Effect: The waves emitted from a moving object received by an observer, which will be shifted towards the blue region when the object is approaching. If the object is moving away from the observer, it will shift towards the red region read more.
- Einstein's Mass-Energy Equation: The energy of a particle is equal to the product of mass and square of the velocity of light. The mathematical representation is given by: E = Mc2 read more.
- Gauss' Law: The electric flux over a closed surface is directly proportional to the sum of the charges with in the surface read more.
- Newton's Law of Universal Gravitation: The force of attraction between two bodies is directly proportional to the product of the masses of the bodies and inversely proportional to the square of the distance between them read more.
Newton's Laws of motion
1) Newton's first law of motion
A body continues its state of rest or uniform motion unless it is acted up on by an external force.
2) Newton's second law of motion
The force of any moving body is equal to the product of mass and the acceleration of the body.
Newton's third law tells that, every action there is an equal and opposite reaction.
- Ohm's Law:The ratio between the potential difference and the current through a conductor is a constant which is known as the resistance read more.
- Uncertainty Principle:It is impossible to determine the position and momentum of a particle simultaneously and accurately read more.
